Abstract: A display device in which film separation is sufficiently inhibited is provided. The display device includes a first insulating layer and a second insulating layer, a first light-emitting device positioned over the first insulating layer, a second light-emitting device positioned over the second insulating layer, and a third insulating layer including a region covering part of a side surface of the first light-emitting device, a region covering part of the bottom surface of the first insulating layer, a region covering part of the bottom surface of the second insulating layer, and a region covering part of a side surface of the second light-emitting device. The first light-emitting device has a tandem structure and the second light-emitting device has a single structure.

Abstract: A novel display panel that is highly convenient or reliable is provided. The display panel includes a display region, a first functional layer, and a second functional layer. The display region includes a pixel, and the pixel includes a display element and a pixel circuit. The first functional layer includes the pixel circuit, a scan line, and a first connection portion. The display element is electrically connected to the pixel circuit, and the pixel circuit is electrically connected to the scan line. The second functional layer includes a region overlapping with the first functional layer, the second functional layer includes a driver circuit and a wiring, and the driver circuit is provided so that the pixel circuit is positioned between the driver circuit and the display element. The wiring is electrically connected to the scan line at the first connection portion, and the wiring is electrically connected to the driver circuit.

Abstract: A display device that can easily have high resolution is provided. A display device having both high display quality and high resolution is provided. A display device with high contrast is provided. A first EL film is deposited in contact with a top surface and a side surface of each of a first pixel electrode and a second pixel electrode each having a tapered shape. A first sacrificial film is formed to cover the first EL film. The first sacrificial film and the first EL film are etched to expose the second pixel electrode and form a first EL layer over the first pixel electrode and a first sacrificial layer over the first EL layer, and then, the first sacrificial layer is removed. The first EL film and the second EL film are etched by dry etching. The first sacrificial layer is removed by wet etching.

Abstract: A novel functional panel that is highly convenient, useful, or reliable is provided. The functional panel includes a base material and a pair of pixels, and the base material covers the pair of pixels and has a light-transmitting property. The pair of pixels includes one pixel and another pixel, and the one pixel includes a light-emitting device and a first microlens. The light-emitting device emits light toward the base material, and the first microlens is interposed between the base material and the light emission and converges light. The first microlens includes a first surface and a second surface; the second surface is closer to the light-emitting device than the first surface is; and the second surface has a smaller radius of curvature than the first surface. The other pixel includes a photoelectric conversion device and a second microlens. The second microlens is interposed between the base material and the photoelectric conversion and converges external light incident from the base material side.

Abstract: A pump unit and a pump capable of detecting characteristics of a conveyance article and a method for detecting the characteristics of the conveyance article. A pump unit includes an outer cylinder; an inner cylinder disposed on an inner circumference side of the outer cylinder; and a pressure supply chamber provided between the inner cylinder and the outer cylinder, the pump unit being configured to convey a conveyance article in the inner cylinder by supplying a pressurizing medium into the pressure supply chamber and thereby causing the inner cylinder to expand inwardly in a radial direction, in which the pump unit further includes a conveyance article information acquiring device configured to acquire information on the conveyance article in the inner cylinder at a time when the inner cylinder is expanded.

Abstract: A highly reliable display device is provided.

Abstract: An electronic device with low power consumption is provided. The electronic device includes a first display device and a second display device. The first display device includes a first display portion, and the second display device includes a second display portion. A plurality of first pixels are arranged in the first display portion, and a plurality of second pixels are arranged in the second display portion. The first display device overlaps with the second display device. The second display portion is provided to surround at least part of the first display portion in a plan view. The area occupied by each of the first pixels is smaller than the area occupied by each of the second pixels.

Abstract: To provide a display apparatus with high display quality. To provide a display apparatus which includes first and second light-emitting devices and in which the first and second light-emitting devices include a common electrode with a light-transmitting property, the first light-emitting device includes a first electrode, a first EL layer, and a first auxiliary electrode with a light-transmitting property, the second light-emitting device includes a second electrode, a second EL layer, and a second auxiliary electrode with a light-transmitting property, the first EL layer is between the first electrode and the common electrode, the second EL layer is between the second electrode and the common electrode, the first auxiliary electrode is between the first EL layer and the common electrode, the second auxiliary electrode is between the second EL layer and the common electrode, and the first auxiliary electrode has a larger thickness than the second auxiliary electrode.

Abstract: Display unevenness in a display panel is suppressed. A display panel with a high aperture ratio of a pixel is provided. The display panel includes a first pixel electrode, a second pixel electrode, a third pixel electrode, a first light-emitting layer, a second light-emitting layer, a third light-emitting layer, a first common layer, a second common layer, a common electrode, and an auxiliary wiring. The first common layer is positioned over the first pixel electrode and the second pixel electrode. The first common layer has a portion overlapping with the first light-emitting layer and a portion overlapping with the second light-emitting layer. The second common layer is positioned over the third pixel electrode. The second common layer has a portion overlapping with the third light-emitting layer.

Abstract: A touch panel capable of performing display and sensing along a curved surface or a touch panel that maintains high detection sensitivity even when it is curved along a curved surface is provided. A flexible display panel is placed along a curved portion included in a surface of a support. A first film layer is attached along a surface of the display panel by a bonding layer. Second to n-th film layers (n is an integer of 2 or more) are sequentially attached along a surface of the first film layer by bonding layers. A flexible touch sensor is attached along a surface of the n-th film layer by a bonding layer.

Abstract: A measurement device includes: a light emitting unit configured to emit pulsed light; an imaging sensor configured to output a signal value corresponding to an exposure amount for each pixel; a timing control unit configured to expose the pixel of the imaging sensor to reflected light in an exposure period that is set according to a measurement target region and has an exposure width shorter than a pulse width of the pulsed light; and a calculation unit configured to calculate an arrival time of the reflected light based on signal values corresponding to three or more consecutive exposure periods that can include the pulse width.

Abstract: A method for fabricating a highly reliable display device is provided. A first conductive film is formed; a first film containing a first light-emitting substance is formed over the first conductive film; a first mask film is formed over the first film; the first conductive film, the first film, and the first mask film are processed such that their side surfaces are substantially aligned with each other to form a first conductive layer, a first layer, and a first mask layer; a second conductive film is formed over the first mask layer and a first sidewall insulating layer; a second film containing a second light-emitting substance is formed over the second conductive film; a second mask film is formed over the second film; and the second conductive film, the second film, and the second mask film are processed such that their side surfaces are substantially aligned with each other to form a second conductive layer, a second layer, and a second mask layer and to expose the top surface of the first mask layer.

Abstract: A display apparatus with high display quality is provided. In the display apparatus, a dummy pixel portion is a region that does not contribute to display. The dummy pixel portion is positioned adjacent to the outside of a pixel portion in a plan view. The pixel portion includes a first insulating layer, a first pixel electrode and a second pixel electrode over the first insulating layer, a first layer over the first pixel electrode, a second layer over the second pixel electrode, and a common electrode over the first layer and the second layer. The dummy pixel portion includes the first insulating layer, a first conductive layer and a second conductive layer over the first insulating layer, a third layer over the first conductive layer, a fourth layer over the second conductive layer, and the common electrode over the third layer and the fourth layer. The first insulating layer includes a first groove and a second groove.

Abstract: When a base film used in a flexible display panel is bonded to a resin member for fixing the base film that is curved, the base film has creases by an environmental change such as temperature due to difference in linear expansion coefficient before and after a thermal shock. A buffer plate that is thin enough to be bent is provided between the base film used in a flexible display panel and the resin member. With the use of heat dissipation effect and heat equalization effect of the buffer plate, a structure around the panel capable of resisting the environmental change can be provided.

Abstract: A thin optical device having high light utilization efficiency and a small electronic device including the optical device are provided. The thin optical device includes a reflective polarizing plate, a lens, and an optical rotator. The optical device can be a thin optical device that is small in overall length by rotation of the polarization plane of linearly polarized light with the optical rotator and utilization of properties of transmitting and reflecting light of the reflective polarizing plate. Furthermore, the optical device does not use a half mirror; thus, the optical device has a property of high light utilization efficiency, and the power consumption of the electronic device can be reduced and the reliability of the electronic device can be improved.

Abstract: A method for manufacturing a highly reliable display device is provided.

Abstract: An electronic device with low power consumption is provided. The electronic device includes a first pixel portion and a second pixel portion. A plurality of first pixels are arranged in the first pixel portion. The second pixel portion includes a first region where a plurality of second pixels are arranged and a second region where a plurality of third pixels are arranged. The second region is provided to surround the first region. The first pixel includes a first light-emitting element, the second pixel includes a light-receiving element, and the third pixel includes a second light-emitting element. The area occupied by one of the first pixels is smaller than the area occupied by one of the third pixels.

Abstract: Display unevenness in a display panel is suppressed. A display panel with a high aperture ratio of a pixel is provided. The display panel includes a first pixel electrode, a second pixel electrode, a third pixel electrode, a first light-emitting layer, a second light-emitting layer, a third light-emitting layer, a first common layer, a second common layer, a common electrode, and an auxiliary wiring. The first common layer is positioned over the first pixel electrode and the second pixel electrode. The first common layer has a portion overlapping with the first light-emitting layer and a portion overlapping with the second light-emitting layer. The second common layer is positioned over the third pixel electrode. The second common layer has a portion overlapping with the third light-emitting layer.

Abstract: A display device that can easily achieve a higher resolution is provided. A display device with high display quality is provided. The display device includes a pixel electrode, a first organic layer, a second organic layer, a first insulating layer, a second insulating layer, and a common electrode. The first insulating layer includes a first portion in contact with part of a top surface of the pixel electrode, a second portion in contact with a side surface of the pixel electrode, and a third portion not in contact with the pixel electrode. The first organic layer includes a fourth portion in contact with another part of the top surface of the pixel electrode and a fifth portion in contact with the first portion. The second organic layer is in contact with the third portion and isolated from the first organic layer. The second insulating layer covers the fifth portion and the second organic layer and is in contact with the first insulating layer between the first organic layer and the second organic layer.

Abstract: A display device with high display quality is provided. The display device includes a first organic insulating layer, a first inorganic insulating layer and a second inorganic insulating layer over the first organic insulating layer, a first light-emitting element, a second light-emitting element, and a second organic insulating layer. The first light-emitting element includes a first pixel electrode over the first inorganic insulating layer, a first EL layer over the first pixel electrode, and a common electrode over the first EL layer. The second light-emitting element includes a second pixel electrode over the second inorganic insulating layer, a second EL layer over the second pixel electrode, and the common electrode over the second EL layer. The second organic insulating layer is provided between the first EL layer and the second EL layer, and the common electrode is provided over the second organic insulating layer.